Warrensburg is home to 921 people in Illinois. At a median age of 46.8, this is an older place than the country as a whole. 18% of adults hold a bachelor's degree, below the 36% national rate. The foreign-born share is 0%. Home values have more than doubled since 2000, reaching $145,400. 76% of homes are owner-occupied.
At a glance
Average income
median household income $81,719, near the US median
US median: $82,259
Older
median age 46.8
US median: 38.9
Less educated
18% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Warrensburg
What changed most since 1990
Median age33.1 → 46.8(+13.7 years)US over the same years: +6.0 years
Population1,252 → 921(−26%)US over the same years: +35%
White share97.8% → 91.4%(−6.4 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)21.2%(24)
US avg: 26.4%
Gulf War (1990s)14.2%(16)
US avg: 24.3%
Vietnam era47.8%(54)
US avg: 33.1%
Korean War10.6%(12)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 113 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Warrensburg, decade by decade
Warrensburg population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
1,252
$81,547
$114,483
10.3%
5.3
2000
1,289
$83,264
$136,442
15.3%
6.7
2010
1,210
$83,475
$139,829
18.2%
7.1
2020
1,110
$76,258
$126,294
27.2%
18.8
2024
921
$81,719
$145,400
17.7%
19.8
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
